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CS-I User and Maintenance, R.2.8 ENG
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7.7.
Adaptive, AD, introduction
In AD mode, after having marked a weld "Good" in IK mode, you can set the maximum
welding time allowed (the welding time 1) and the minimum time; then you set a percentage
of resistance decrease after the maximum value reached at which the welding will stop.
The concept of this adaptive control is to monitor the resistance of the point during the
warm up to a maximum and then detect a reduction percentage of the resistance.
The welding time never is less than the minimum and never exceeds the maximum value.
In this mode, the parameter "VE input" of voltage probe presence should be set to "YES"
and as with IK mode the calibration of machine is required
The installation of the Rogowski coil and the voltage sensor at the tips are required.
This mode is available only in spot cycles
.
7.7.1
Adaptive, AD, operative notes
The adaptive mode is a special case of control IK, where the use is stopped when the
resistance has dropped about a percentage set by parameter
1.
Defining an optimal operating condition by working in IK mode, welding, only with a single
pulse on a weld 1
2.
Bring the program mode AD:
a.
Set the parameters "T. x Welding Min" and "Welding x T. Max" to the minimum and
maximum time taken for welding, weld, 1 and 2 (if used). In particular, as the
maximum time it is suggested to set a value sufficiently greater than that found in
welding IK, then the algorithm to leave the task to stop welding.
b.
Set a level of resistance fall of start (eg 7%)
c.
Run the tests.
3.
Any maintenance after the collapse resistance can be introduced using the hot time during
the welding, the system automatically stops supply of hot time 1 when it detects a loss of
resistance equal to that set (training core).
•
It may be necessary to reduce the current demand, and increasing the times of
welding, to simplify the identification of the instant collapse of the resistance.
•
Experiment with different levels of % drop, in order to make the process repeatable
NOTE:
Since the collapse of the resistance phenomenon is an event quite variable and influenced
by several factors (eg, dirt sheets, projection equipment, ...) algorithm with the AD welding
time can vary from point to point, significantly . This is normal behavior.
It is suggested, however, accurately checking the stability of the process, and the quality of
a large sample of welds the same as validation.